Kilpatrick, J., Swafford, J., & Findell, B. (2001). Adding it UP: Helping children learn mathematics (1a. ed.). National Academy Press.
Citace podle Chicago (17th ed.)Kilpatrick, Jeremy, Jane Swafford, a Bradford Findell. Adding It UP: Helping Children Learn Mathematics. 1a. ed. Washington, D.C: National Academy Press, 2001.
Citace podle MLA (9th ed.)Kilpatrick, Jeremy, et al. Adding It UP: Helping Children Learn Mathematics. 1a. ed. National Academy Press, 2001.
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